Control System Of Synchronous Spraying For Spray Machine

Nowdays, pesticide insufflation mostly depend on dynamical engine, but the normal spray method can not ensure spraying according to preplaned way to the plot, so we designed variable spray control system, following the software and hardware equipment, automatically adjust the spraying quantum to meet the needs, the spray effect is more uniformity and safety than the normal way.The designing is based on many kinds of plant protect spray mechanical inland and overseas, improve the farmland spray perch sprayer control system, bring forward the conception of variable spray technique firstly, and designed a suit of very applied variable spray control and decision-making project. Variable spray technique is a satisfy theory spray quantum technique which during the spray time, through realtime feedback of many transducer, using singlechip process collection data, the quantum of spraying changed with vehicle speed.For reducing pollute and avoid pesticide excursion, on the purpose of increasing produce and economic benefit, considering feasibility of the testing and practicability in the fanning producing, using the method of decide the spray quantum artificially, namely, enactment a unit area medicine quantum, chose and enactment relative spray quantum,spray head parameter (type, color and space) , variable control system deside spray head aim control pressure base on the task speed of sprayer in the farm, and calculate the real medicine quantum per minute base on the space of spray heads, check the list and insert figure, achieve spray pressure of the control objective, compare to the enactment value, autocontrol adjust clique, change medicine quantum, make the real medicine quantum same to the enactment value. We integrate some exact agricultural theory, Using single-chip carry out realtime pressure adjust control to the pressure adjust electromotor, thereby realized spray exactly according to farmland and needs, and try hard to realize the purpose of high effect and lower pollute effectively.The system changes medicine quantum according to the character of the object and the speed changing of the unit stepped which can save pesticide and alleviate the burden that the farming environment make to the chemistry physical effectively, can mostly reduce the side effect because of overcommit pesticide, can relieve the pressure of environment in our country, make fanning keep continuing and steady developing. The variable spray technique is the important task and developing direction of plant protect machine research nowdays.Some simulate examination indicate: the control system runing steadily,movement reliable, technique index according to the design demand.